20454785050 has 96 divisors (see below), whose sum is σ = 46098478080. Its totient is φ = 6591974400.

The previous prime is 20454785047. The next prime is 20454785051. The reversal of 20454785050 is 5058745402.

It is a junction number, because it is equal to n+sod(n) for n = 20454784994 and 20454785012.

It is not an unprimeable number, because it can be changed into a prime (20454785051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5894716 + ... + 5898184.

It is an arithmetic number, because the mean of its divisors is an integer number (480192480).

Almost surely, 2^20454785050 is an apocalyptic number.

20454785050 is an abundant number, since it is smaller than the sum of its proper divisors (25643693030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20454785050 is a wasteful number, since it uses less digits than its factorization.

20454785050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4496 (or 4491 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 40.

The spelling of 20454785050 in words is "twenty billion, four hundred fifty-four million, seven hundred eighty-five thousand, fifty".